The San Diego County Water Authority thinks it found a clever loophole. They call it "water marketing." I call it a desperate garage sale by an agency that overbuilt its way into a corner.
By selling 1,000 acre-feet of water to the San Luis Rey Indian Water Authority, officials are taking a victory lap, claiming this move will help keep rates in check for local residents. It is a fairy tale. When you build a gold-plated infrastructure for a population that has learned to stop drinking the Kool-Aid (literally), you don't "market" your way out of debt. You just delay the inevitable collision with reality.
The narrative being pushed is simple: we have extra water, someone else needs it, and the revenue offsets our costs. But this ignores the structural rot at the heart of California water management. San Diego is currently trapped in a fixed-cost nightmare of its own making.
The Over-Engineering Trap
For decades, the "experts" in San Diego operated on a singular, flawed premise: growth is infinite and supply is the only constraint. They spent billions on the Claude "Bud" Lewis Carlsbad Desalination Plant and massive pipeline projects. They secured expensive independent water transfers from the Imperial Valley. They built for a future that never arrived.
Now, they have more water than they can use. Not because the drought is over, but because the price signals finally reached the consumer. San Diego has some of the highest water rates in the country. People responded the way any rational actor does when a commodity becomes a luxury: they stopped buying it.
The "lazy consensus" says that having "excess" water is a sign of reliability and foresight. In reality, it is a sign of massive capital misallocation. Every drop of water San Diego sells to an outside agency is a drop that local ratepayers already subsidized through their skyrocketing monthly bills.
The Math of the Death Spiral
The water business is a game of high fixed costs and low variable costs. Roughly 80% to 90% of a water utility’s budget goes toward debt service on pipes, pumps, and treatment plants. These costs do not go away when you use less water.
When San Diego sells water to the San Luis Rey River Indian Water Authority, they aren't making a profit. They are trying to recover a fraction of the cost of the infrastructure required to move that water.
Consider the mechanics of the "Death Spiral":
- Rates Increase: To pay for billion-dollar projects (Desal, Pure Water, Imperial Valley transfers).
- Demand Drops: Residents install low-flow toilets, rip out lawns, and conserve to save money.
- Revenue Gap: The agency sells less water than projected, but the debt payments remain the same.
- The "Fire Sale": The agency sells "excess" water to outsiders at a discount or to "offset" costs.
- Rate Hike: Because the external sales don't cover the full infrastructure burden, the agency raises rates again on the remaining captive customers.
I have seen this movie before in the energy sector. When solar panels started hitting roofs, utilities tried to tax the sun to protect their legacy investments. San Diego is doing the same thing with water. They are trying to manage a shrinking market by pretending they are "wholesalers" to the rest of the state.
The Desalination Delusion
The Carlsbad Desalination Plant is the crown jewel of San Diego’s "reliability" strategy. It is also a massive financial anchor. Desalinated water is among the most expensive sources on the planet.
The plant produces about 50 million gallons a day. The County is contractually obligated to pay for that water whether they need it or not. When the winter is wet and the reservoirs are full, that desalinated water becomes a liability.
The current "sell-off" strategy is an admission of failure. They are selling water because they are forced to buy water they cannot store and cannot convince their own citizens to afford. It is the equivalent of a restaurant forcing its regulars to pay for a 10-course meal, watching them eat only three courses, and then selling the leftovers to the guy in the alley to "keep prices down" for the regulars next week.
Dismantling the "People Also Ask" Myths
Is San Diego’s water supply finally "drought-proof"?
Technically, yes. Economically, no. You can be "drought-proof" by spending $10,000 on a bottle of water, but you'll be broke. True reliability isn't just having the molecules; it's having a sustainable economic model. San Diego has achieved "reliability" by pricing out the very people the system was built to serve.
Will these sales actually lower my bill?
No. They might slow the rate of increase, but your bill is going up. The Water Authority is facing a $300 million-plus budget gap over the next few years. Selling 1,000 acre-feet—roughly what 2,000 households use in a year—is a rounding error in a system that serves 3.3 million people. It's PR, not a pivot.
Why not just store the extra water?
Because storage has reached its physical and financial limits. San Diego spent nearly a billion dollars to raise the San Vicente Dam. They have the space. What they don't have is the ability to keep paying the "take-or-pay" contracts for new water while the old water sits in a hole in the ground. Water is heavy, moving it is expensive, and letting it sit is a sunk cost that generates no cash flow.
The Bitter Truth of Decoupling
The industry needs to stop lying to itself. We have entered an era of "decoupling," where economic growth no longer requires increased water consumption. This should be a triumph of engineering and conservation. Instead, it’s a crisis for the bureaucrats because their entire financial model is based on volume.
If San Diego wanted to be truly revolutionary, they would stop trying to find new buyers for their overpriced inventory and start aggressively retiring debt or shrinking the footprint of the agency. Instead, they are doubling down on "Pure Water" recycling projects.
Don't get me wrong—recycling water is technically superior to desalination. It uses less energy and makes more sense. But adding another multi-billion dollar project on top of a system that is already over-supplied and over-leveraged is madness. You don't fix a hole in your pocket by sewing on a more expensive pocket.
The Real Risk: Stranded Assets
We are looking at the birth of "stranded assets" in the water sector. Much like coal plants in a world of cheap natural gas, San Diego’s high-cost water sources are becoming liabilities.
Imagine a scenario where the city of San Diego completes its "Pure Water" project and suddenly needs zero water from the County Water Authority. The County is still stuck with the bill for the Carlsbad plant and the Imperial Valley transfers. Who pays then? The remaining member agencies—the smaller cities and rural districts—will see their rates triple overnight.
This isn't a theory. It's already happening. The Fallbrook and Rainbow water districts already voted to leave the San Diego County Water Authority because they could find cheaper water elsewhere. They saw the writing on the wall. They realized that staying in the "San Diego family" meant subsidizing a gold-plated infrastructure they didn't ask for and couldn't afford.
The Unconventional Path Forward
If I were sitting on that board, I wouldn't be bragging about a small-time sale to an Indian Water Authority. I would be doing the following:
- Halt All New Capital Projects: No "Pure Water," no new pipelines, no "reliability" upgrades. We have enough reliability. We need affordability.
- Aggressive Debt Restructuring: Use every legal and financial lever to refinance the billions in bond debt that is choking the ratepayer.
- Standardize the "Exit Fee": San Diego tried to sue the districts that left. Stop litigating and start calculating the true cost of the stranded assets so everyone knows the price of the "Death Spiral."
- Truth in Billing: Stop hiding fixed infrastructure costs in "volumetric" rates. If the bill is $150 a month, and $130 of that is just to keep the lights on at the desal plant, show the customer. Stop pretending that taking a shorter shower will save them more than a few pennies.
The "lazy consensus" says San Diego is a model for the world in water independence. The "nuanced reality" is that San Diego is a cautionary tale of what happens when engineers run a business without an accountant in the room.
Selling water to "keep rates in check" is the ultimate admission that the system is broken. You are selling your survival gear to pay the mortgage on a house you can't afford to live in.
Stop congratulating the salesmen. Start questioning the architects.
